Apparatus for making tubes.



J. MAYOR.

APPARATUS FOR MAKING TUBES.

APPLIOATION FILED JULY 14,1911.

Patented Aug. 27, 1912.

Jouu MAYO, on s r, i=

Speeification of Letters: latent:

Application filed July 14, 1911'. Serial No. 688,472.

and, Russia.

, t G" TUBES;

Patented. dugnQ't, 1912;

To all whom it may concern-: I

Be it known that I, JOHANN MAYOR, a subject of the Czar of Russia,residing at St. Petersburg, Russia, have invented certain new and usefulImprovements in Ap paratus for. Making Tubes; and I do hereby declarethe followingtobe a. full, clear, and exact description of theinvention, such as will enable others skilledin the art to which itappertains to make anduse the same.

This invention has for its object a device for the correct rolling ofpasteboard tubes in machines for making cigarette cartridges(paper-shells) and. pasteboard tubes to be inserted therein.

In some machines of this kind,.. described I for instance in the RussianLetters Patent No. 9,684, the pasteboard tube is rolled with in thefixed tube or sleeve 1 upon the rolling rod or mandrel 2. In thisinstance the pasteboard ribbon, in the beginning of the rolling, doesnot fill the whole space between 1 and 2, and does not lie very closely,as the pasteboard is not very pliable, and the rib bon is rolled often.not quite evenly and the form of the tube does not become quitecylindrical. The' present invention seeks to prevent this defect, sothat the pasteboard tube may be rolled in a correct and exact manner.

With these and other objects in view the invention consists in the noveldetails of construction and combinations of parts more fully hereinafterdisclosed and particularly pointed out in the claim. l

Referring to the accompanying drawings forming a part of thisspecification in which like numerals designate ,like parts in all theviews :Figure 1 is a front view of the improved device; Fig. 2 is a topview of the same; Fig; 3 is a transverse section through the line A B ofthe Fig. 1; Figs. 4 and 5 represent respectively a longitudinal and atransverse section of the tube, in which the rolling of the pasteboardtube is performed; and Figs. G'and 7 illustrate in side elevation andtransverse section alsepa'rate detail of the device.

I The fixed tube 1, in which the rolling of the asteboard tube isperformed, is secured in tfie usual way to the ring 3by means of thescrew ,4, and the ring'3, is mounted on the machine frame or support.The and piece 5 forms a prolongation of the tube 1, and is fastened tothering' 6 by means of slide block 11.

the screw Within the tube 1 the rolling rod 2 1s dlsposed with an emptyspace intervemng between the same and the fixed tube 1. The. rolling.rod 2. is provided. with a clutch section (8 and 9) adapted to becoupled atproper moments with another clutch section (not shown in thedrawings) for imparting rotation to said rod 2. In the empty spacebetween the rolling rod 2 and the tube 1 the ramming tube or ejector 10is arranged,. and which is integral with the In its outer left-hand.position the tube 10 leaves free the whole intermediate space between 1and 2 or the length from. the ringv 3 to the ring 6, while in its outerright hand position the same tube is so disposed, that its edge comes tobe in the same plane as the end of the cigarette cartridge, wherein thepasteboard tube is to be inserted. A periodical reciprocating movementis im arted to the ramming" tube 1'0- by'means o a lever-gear connectedwith the ring 12 of the slide block 11.

In order'to secure'the correct inserting of the pasteboard strip intherolling device and to tension said strip there is provided a movablebar 13 that is lifted during the rolling by means ofa mechanism notshown in the drawing. Said bar is provided with slide bars 14 movable inthe guideways 15.

.When entering the recess 16 the edge of the pasteboard ribbon isinserted in the slit 17 of the rolling rod 2, the said slit justcoinciding at this moment with the recess 16. To secure an effectiveengaging of-the pasteboard ribbon, the slit 17 passes into thecylindrical boring 18.

During the engaging of the pasteboard ribbon by the slit 17 and duringthe whole operation of rolliniithe pasteboard tube, the ramming tube 10eeps its left hand position, leaving the intermediate space between 1and 2 free for the pasteboard tube.

According to the present invention, from the moment the pasteboardribbon is engaged-bythe slit 17 and during the whole period of itsrolling, holding cheeks 21, and 22 are passing from above and from belowthrough the suitable openings, 19 and 20, of the tube 1, the said cheeksbeing pressed to the rolling rod 2 by means of the springs 23, 24. Thecheeks are secured to the slippers 25, 26 and are movable in the uprightdirection in the suitable guide-ways 27, 28. The slippers 25, 26 areprovided with two diametrically opposite rollers 29, 30, while the camdisk 31 is disposed between the said rollers. This cam disk may beperiodically rotated, moving asunder the cheeks 21, 22 during theinserting of the rolled pasteboard tube in the cigarette cartridge bymeans of the ramming tube 10 and during the return stroke of the latter.The pasteboard tube remains therefore all the time under the pressure ofthe cheeks 21, 22 and the rolling is effected in an even and exactmanner. The upper check 21 may be made adjustable by means of the groove32 and the adjustable square piece 33, as shown separately in Figs. 6and 7.

The arrangement mentioned above is only an example like form of carryingout the present invention, the essential feature of the latterconsisting in the use of the cheeks 21, 22, pressing the pasteboardribbon to the mandrel during the whole operation of rolling it.

It is obvious that those skilled in the artmay vary the details ofconstruction and arrangement of parts without departing from the spiritof my invention, and therefore I do not wish to be limited to suchfeatures except as may be required by the claim.

What I claim is In an apparatus for forming tubes, the" strip, andhaving oppositely located openings; devices associated with said mandrel:to press the forming tube, said devices comprising each a cheek piecemovable within the sleeve opening, members on which said cheek piecesare mounted, a guide for each ;of said members, and a cam rolleroperable to actuate said members to move the cheek pieces from operativeposition; a strip tensioning and guiding device associated with saidsleeve; and an ejector sleeve mounted to reciprocate within saidcylindrical chamber, substantially as described.

In testimony whereof, I affix my signature, in presence of twowitnesses.

J OHANN MAYOR.

Witnesses H. A. LOVIAGUINE, M. S. SNISARENN.

